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HP Recommended
HP ZBook 15 Base Model Mobile Workstation
Microsoft Windows 10 (64-bit)

I can't control the brightness on my laptop (F9, F10). I did a clean installation of win 10 and installed all updates from Windows Update. Hp Driver Assistant shows that all of my drivers are up to date. In device manager, I can't find anything either. Before the clean install of win 10, I had a sp file which I installed manually, but now I can't find it on the internet. The previous system was also win 10.

1 ACCEPTED SOLUTION

Accepted Solutions
HP Recommended

Sorry to hear that you are having problems ... and I would like to help you.

(1) Update BIOS

HP Notebook System BIOS Update

01.26 Rev.A14.1 MBMay 8, 2020Download

Why should you install the update ?

https://support.hp.com/us-en/document/ish_4123786-2338478-16

Quote: "

Updating the BIOS is recommended as standard maintenance of the computer. It can also help resolve the following issues:

  • An available BIOS update resolves a specific issue or improves computer performance.
  • The current BIOS does not support a hardware component or a Windows upgrade.
  • HP Support recommends installing a specific BIOS update.

"

(2) Install/Update

Intel Full Management Engine (ME) Firmware Component

9.1.45.3000 Rev.A6.3 MBAug 20, 2018Download

HP Hotkey Support

6.2.50.1 Rev.A50.1 MBSep 11, 2018Download

HP Hotkey Support - UWP

8.0.9.1 Rev.A63.3 MBApr 23, 2020Download
 
(3) Reboot and test again ...
 
(4) The "official" way to control brightness should be the [Fn] + [F9] and [Fn] + [F10] key combinations ...

View solution in original post

3 REPLIES 3
HP Recommended

Sorry to hear that you are having problems ... and I would like to help you.

(1) Update BIOS

HP Notebook System BIOS Update

01.26 Rev.A14.1 MBMay 8, 2020Download

Why should you install the update ?

https://support.hp.com/us-en/document/ish_4123786-2338478-16

Quote: "

Updating the BIOS is recommended as standard maintenance of the computer. It can also help resolve the following issues:

  • An available BIOS update resolves a specific issue or improves computer performance.
  • The current BIOS does not support a hardware component or a Windows upgrade.
  • HP Support recommends installing a specific BIOS update.

"

(2) Install/Update

Intel Full Management Engine (ME) Firmware Component

9.1.45.3000 Rev.A6.3 MBAug 20, 2018Download

HP Hotkey Support

6.2.50.1 Rev.A50.1 MBSep 11, 2018Download

HP Hotkey Support - UWP

8.0.9.1 Rev.A63.3 MBApr 23, 2020Download
 
(3) Reboot and test again ...
 
(4) The "official" way to control brightness should be the [Fn] + [F9] and [Fn] + [F10] key combinations ...
HP Recommended

I did everything besides upgrading bios because I don't know bios password (I bought this laptop from second hand). Fn + F9/F10 works, but with 2s delay.

EDIT: I had to update my graphics card driver from Windows Update. 

HP Recommended

It was a great pleasure to help you 

best regards

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.